<div ng-controller="alertCtrl1">
    <input type="button" class="wi-btn" value="info" ng-click="info()" />
    <input type="button" class="wi-btn" value="warn" ng-click="warn()" />
    <input type="button" class="wi-btn" value="error" ng-click="error()" />
    <input type="button" class="wi-btn" value="success" ng-click="success()" />
    <input type="button" class="wi-btn" value="confirm" ng-click="confirm()" />
</div>